EP0918681B1 - Konsole für eine strebe an einem fahrzeug - Google Patents

Konsole für eine strebe an einem fahrzeug Download PDF

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Publication number
EP0918681B1
EP0918681B1 EP97936909A EP97936909A EP0918681B1 EP 0918681 B1 EP0918681 B1 EP 0918681B1 EP 97936909 A EP97936909 A EP 97936909A EP 97936909 A EP97936909 A EP 97936909A EP 0918681 B1 EP0918681 B1 EP 0918681B1
Authority
EP
European Patent Office
Prior art keywords
vehicle
reaction
strut bracket
reaction strut
fastened
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP97936909A
Other languages
English (en)
French (fr)
Other versions
EP0918681A1 (de
Inventor
Lars Bergström
Lars Jung
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Scania CV AB
Original Assignee
Scania CV AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Scania CV AB filed Critical Scania CV AB
Publication of EP0918681A1 publication Critical patent/EP0918681A1/de
Application granted granted Critical
Publication of EP0918681B1 publication Critical patent/EP0918681B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/11—Understructures, i.e. chassis frame on which a vehicle body may be mounted with resilient means for suspension, e.g. of wheels or engine; sub-frames for mounting engine or suspensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G5/00—Resilient suspensions for a set of tandem wheels or axles having interrelated movements

Definitions

  • the invention relates to a reaction strut bracket for a vehicle in accordance with the preamble to patent claim 1.
  • Bus manufacture usually involves as a first stage the manufacture of a chassis and as a second stage the mounting of a vehicle body on that chassis. It is also usual for the chassis and the vehicle body to be made by different manufacturers. The chassis manufacturer makes a number of different standard chassis and the body builder purchases the most suitable chassis on which to mount the particular type of vehicle body. Although this manufacturing process has long been developed, mounting a vehicle body on a chassis involves various special operations. For example, it is usual that the chassis manufacturer makes a front section and a rear section (each provided with frame side members) and that the body builder makes a vehicle body with self-supporting structure between these two sections. A problem which arises in this respect is that of fastening the vehicle body to the chassis.
  • reaction struts to absorb forces from the vehicle's wheel suspension
  • reaction strut brackets are examples of components which have to be positioned at points on the frame side members which are suitable from the force distribution point of view, as shown in document DE 1755 811 A that shows the features of the preamble of claim 1.
  • the invention is intended to eliminate the abovementioned disadvantages. Its object is therefore to make it possible for the vehicle body to be fastened to the chassis in a manner and at points which are advantageous from the force absorption point of view.
  • One aspect of this is that the fastening of the vehicle body should not weaken the chassis or the chassis frame side members.
  • a further aspect is that the fastening should not result in the vehicle's luggage space being limited by penetrating struts or the like.
  • the fundamental idea of the invention is that at least two of the reaction strut brackets fastened to the chassis are provided with fastening surfaces to which it is possible to fasten the vehicle body. This means that in fastening the vehicle body to the chassis the body builder will not have to make any fastening of his own to the frame side members. As the reaction strut brackets will have already been fastened to the frame side members in the course of chassis manufacture, the vehicle body mounting process will involve no further operations on the frame side members. The frame side members will thus not be subject to weakening by the creation of further fastening holes or the like. It is primarily the reaction strut brackets situated in the vicinity of the vehicle's rear axle which have to be used in this respect, since this is the most critical area from the space point of view, but other reaction strut brackets may of course also be used.
  • the design of the fastening surfaces of the reaction strut brackets may for example consist of a simple surface to which it is possible to fasten the vehicle body by welded connections, but other designs are of course possible with regard to both the design of the fastening surfaces and the fastening connections.
  • reaction struts One purpose of reaction struts is to transmit the forces which arise from the wheel suspension to the vehicle body with a view to their being absorbed by the latter.
  • the solution according to the invention makes it possible for the forces arising from the wheel suspension to be transmitted via the reaction struts and the reaction strut brackets directly to the vehicle body without following unnecessarily circuitous paths.
  • the fundamental idea of the invention is thus to provide a reaction strut bracket such that it can also be used for fastening the body to the vehicle's frame and frame side members.
  • Fig. 1 shows a side view of a chassis 1 for a vehicle which in this example takes the form of a bus.
  • the details depicted include a rear section 2 of the chassis 1 which also includes an undepicted front section which, like the rear section 2, incorporates a frame with frame side members 3 and a number of cross-members 4.
  • a vehicle body 5 which connects the rear section 2 to the front section so as together to form a whole bus. Sections of the vehicle body 5 are only depicted in Fig. 3.
  • the vehicle body 5 is constructed as an integrated self-supporting unit which has no conventional frame.
  • the longitudinal frame side members 3 are bent upwards to provide space for the rear axle 6 and its wheel suspension.
  • the rear axle 6 is air-sprung, so the bus's wheel suspension incorporates air bellows of inherently conventional design which are therefore not described in more detail.
  • air springs provide good possibilities of damping out vertical oscillation movements between the wheels and the chassis.
  • a disadvantage of air suspension is that the air bellows cannot locate the axle 6 in the horizontal plane relative to the chassis 1 and the vehicle frame. It is therefore necessary to use instead a number of reaction struts 7,9 whose function is to locate the axle 6 relative to the frame.
  • the reaction struts 7,9 consist of a number of substantially straight bars which each have one of their ends fastened to the axle 6 and the other end fastened to the reaction strut bracket.
  • This embodiment incorporates two upper reaction struts 9 which are fastened to the inside of the frame side members 3 via inner reaction strut brackets provided for the purpose which extend obliquely forwards from the middle of the axle 6 and outwards towards the frame side members 3. The latter do not form part of the invention described in this embodiment and are therefore not further described.
  • This embodiment also incorporates two lower reaction struts 7 which extend from the axle 6 substantially straight forwards in the longitudinal direction of the vehicle towards outer reaction strut brackets 8 on the outsides of the frame side members.
  • Each of the lower reaction brackets 8 consists of two plates welded together which have their lower ends bent outwards. These plates extend substantially vertically in the longitudinal direction of the vehicle. Between these plates and beneath the respective frame side member 3 is fastened a bearing in the form of a bearing sleeve 11 to which the respective lower reaction strut 7 is bearingly fastened.
  • the reaction strut brackets 8 are in their turn fastened by bolted connections 10 to the frame on the outside of the frame side beams 3. As relatively large forces are required for positioning the axle in all operating situations, it is important that the reaction strut brackets 8 are situated at points which can absorb large forces. It is also essential that the reaction strut brackets 8 are properly fastened to the frame side members 3 by a sufficient number of bolted connections 10.
  • Each of the reaction strut brackets 8 depicted in the drawings is fastened by twelve bolted connections 10 to the frame side member 3. This means that the reaction strut brackets 8 are fastened to the frame forward of the vehicle's rear axle 6. In the region of each reaction strut bracket 8 the frame is provided with a cross-member 4 to stiffen the frame in the transverse direction.
  • the bolted connections 10 for each reaction strut bracket comprise six forward and six rearward of the cross-member 4.
  • each reaction strut bracket 8 is provided with a fastening surface which in this embodiment consists of a vertical surface 12 facing forwards and a lower horizontal surface 13 facing downwards which together form a continuous fastening surface.
  • This surface is arranged beneath the frame side member 3.
  • this fastening surface may take the form of an angle-iron which runs across the vehicle and is welded firmly to the lower forward angle of the two plates which form the respective reaction strut bracket 8.
  • Similar reaction strut brackets 8 are arranged on both frame side members 3, but as these are symmetrically alike, only one of the reaction strut brackets 8 is described,
  • the fastening surface 12,13 is intended for fastening the vehicle body 5 to the chassis rear section 2.
  • a strut 14 is fastened by welding to this fastening surface 12,13 to connect the vehicle body 5 to the frame side member 3.
  • This strut 14 extends obliquely downwards and forwards and transmits forces between the vehicle body 5 and the chassis 1.
  • the strut 14 is fastened both to the vertical side surface 12 and to the horizontal surface 13. The ideal from the force absorption point of view would have been for the strut 14 to extend entirely horizontally, parallel with the reaction strut 7, because vehicle braking results in relatively large braking forces having to be transmitted in substantially the longitudinal direction of the vehicle.
  • the vehicle body strut 14 is connected to a cross-member 15 to which an undepicted luggage compartment floor in the vehicle body is fastened.
  • the depicted cross-member 15 also has fastened to it a vertical element 16 which in turn is also firmly welded to a forward end of the web of the frame side member 3.
  • the strut 14, the element 16 and the cross-member 15 form part of the otherwise undepicted structural frame of the vehicle body 5.
  • the design of the fastening of the vehicle body 5 to the front section of the chassis 1 may in principle be analogous to what is described above for the fastening to the chassis rear section 2, but the positioning of the strut for the forward fastening of the vehicle body is not as critical, which makes it possible to use a fastening of known design, further description of which is not material to the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Vehicle Body Suspensions (AREA)
  • Body Structure For Vehicles (AREA)

Claims (7)

  1. Reaktionsstrebenstütze für ein Radfahrzeug mit einem Fahrgestell, das mit einem Rahmen versehen ist und dazu bestimmt ist, mit einer selbsttragenden Fahrzeugkarosserie verbunden zu werden, wobei die Reaktionsstrebenstütze (8) am Fahrzeugrahmen (3) befestigt ist und über Streben (7, 9) mit der Radaufhängung des Fahrzeugs verbunden ist, um eine Fahrzeugachse (6) zu positionieren und/oder Reaktionskräfte von der Radaufhängung aufzunehmen, dadurch gekennzeichnet, dass die Reaktionsstrebenstütze (8) mit einer Befestigungsfläche (12, 13) versehen ist, über welche die Fahrzeugkarosserie (5) sich am Fahrzeugrahmen (3) befestigen lässt.
  2. Reaktionsstrebenstütze nach Patentanspruch 1, dadurch gekennzeichnet, dass die Befestigungsfläche (13) nach unten gerichtet ist und eine waagerechte Erstreckung hat.
  3. Reaktionsstrebenstütze nach Patentanspruch 1, dadurch gekennzeichnet, dass die Befestigungsfläche (12) in Vorwärtsrichtung des Fahrzeugs gerichtet ist und eine senkrechte Erstreckung hat.
  4. Reaktionsstrebenstütze nach Patentanspruch 1, dadurch gekennzeichnet, dass die Befestigungsfläche (12, 13) von einem Winkelprofil gebildet ist, das an der Reaktionsstrebenstütze (8) befestigt ist, und dass das Winkelprofil sich in Querrichtung des Fahrzeugs erstreckt.
  5. Reaktionsstrebenstütze nach Patentanspruch 4, wobei die Reaktionsstrebenstütze (8) zwei Platten mit im wesentlichen senkrechter Erstreckung in Längsrichtung des Fahrzeugs aufweist, dadurch gekennzeichnet, dass das Winkelprofil an den vorderen unteren Winkelabschnitten der jeweiligen Platten befestigt ist, die somit durch das Winkelprofil zusammengehalten sind.
  6. Reaktionsstrebenstütze nach einem der Patentansprüche 1-5, dadurch gekennzeichnet, dass die Befestigungsfläche (12, 13) unterhalb eines längsgerichteten Rahmenseitenteils (3) angeordnet ist, welches Bestandteil des Rahmens ist, und an dem die Reaktionsstrebenstütze (8) befestigt ist.
  7. Reaktionsstrebenstütze nach einem der Patentansprüche 1-5, wobei die Reaktionsstrebenstütze (8) ein Lager (11) für eine Reaktionsstrebe (7) trägt, die von einer luftgefederten Hinterachse (6) nach vorne gerichtet ist, dadurch gekennzeichnet, dass sowohl das Lager (11) wie die Befestigungsfläche (12, 13) unterhalb eines längsgerichteten Rahmenseitenteils (3) angeordnet sind, welches ein Teil des Rahmens ist und an dem die Reaktionsstrebenstütze (8) befestigt ist.
EP97936909A 1996-08-30 1997-08-28 Konsole für eine strebe an einem fahrzeug Expired - Lifetime EP0918681B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9603141A SE9603141L (sv) 1996-08-30 1996-08-30 Reaktionsstagsfäste för ett fordon
SE9603141 1996-08-30
PCT/SE1997/001422 WO1998008729A1 (en) 1996-08-30 1997-08-28 Reaction strut bracket for a vehicle

Publications (2)

Publication Number Publication Date
EP0918681A1 EP0918681A1 (de) 1999-06-02
EP0918681B1 true EP0918681B1 (de) 2002-04-17

Family

ID=20403703

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97936909A Expired - Lifetime EP0918681B1 (de) 1996-08-30 1997-08-28 Konsole für eine strebe an einem fahrzeug

Country Status (5)

Country Link
EP (1) EP0918681B1 (de)
BR (1) BR9711973A (de)
DE (1) DE69712070T2 (de)
SE (1) SE9603141L (de)
WO (1) WO1998008729A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018207486A1 (de) * 2017-05-29 2019-01-24 Suzuki Motor Corporation Struktur zur Montage eines Antriebsstrangs

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1035485A (fr) * 1951-04-10 1953-08-25 Daimler Benz Ag Châssis, en particulier pour omnibus

Also Published As

Publication number Publication date
SE9603141D0 (sv) 1996-08-30
EP0918681A1 (de) 1999-06-02
SE505645C2 (sv) 1997-09-22
WO1998008729A1 (en) 1998-03-05
BR9711973A (pt) 1999-08-24
DE69712070D1 (de) 2002-05-23
SE9603141L (sv) 1997-09-22
DE69712070T2 (de) 2002-10-10

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